world's tallest building

The world's tallest building is a constantly changing statistic as people try and outdo each other. As of September 2, 2008, the Burj Dubai tower in Dubai, United Arab Emirates, had reached 688 meters (2,257 feet) and was still under construction. This surpassed both the previous "tallest building," Taiwan's Taipei 101 tower as the world's tallest building when it reached 512 meters (1,533 feet) and the previous "tallest man-made structure" when it passed the 629-meter (2,063-foot) KVLY-TV mast in North Dakota, USA.

Interestingly enough, what gets the "World's Tallest Building" title can depend on how you figure the height. When I created this writeup in 2000, there were several possibilities:

Sources:
http://news.yahoo.com/s/afp/20080902/wl_mideast_afp/uaeconstructiondubai;_ylt=AunbH_ns7SH_WJkH4.3FHJG9IxIF
http://www.worldstallest.com (before its being taken down by its webmaster in September 2001)
Cecil Adams' The Straight Dope column at http://www.straightdope.com/columns/000721.html